From: Jon Derrick Date: Wed, 10 Feb 2021 16:13:14 +0000 (-0700) Subject: iommu/vt-d: Use Real PCI DMA device for IRTE X-Git-Tag: v5.13-rc1~43^2~6^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b4a824b889e1cc5e0430b80e40cfe9838c5b5f0;p=thirdparty%2Fkernel%2Flinux.git iommu/vt-d: Use Real PCI DMA device for IRTE VMD retransmits child device MSI-X with the VMD endpoint's requester-id. In order to support direct interrupt remapping of VMD child devices, ensure that the IRTE is programmed with the VMD endpoint's requester-id using pci_real_dma_dev(). Link: https://lore.kernel.org/r/20210210161315.316097-2-jonathan.derrick@intel.com Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi Acked-by: Lu Baolu Acked-by: Joerg Roedel --- diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 611ef5243cb63..75429a5373ec9 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1280,7 +1280,8 @@ static void intel_irq_remapping_prepare_irte(struct intel_ir_data *data, break; case X86_IRQ_ALLOC_TYPE_PCI_MSI: case X86_IRQ_ALLOC_TYPE_PCI_MSIX: - set_msi_sid(irte, msi_desc_to_pci_dev(info->desc)); + set_msi_sid(irte, + pci_real_dma_dev(msi_desc_to_pci_dev(info->desc))); break; default: BUG_ON(1);